A recent study reveals that Canada has the potential to remove at least five times its annual carbon emissions just by strategically planting over six million hectares of trees along the northern edge of the boreal forest.
Researchers from the University of Waterloo used satellite data and considered factors like fire risks and climate conditions to estimate carbon removal. They found that planting about 6.4 million hectares of trees could absorb roughly 3.9 gigatonnes of CO₂ by 2100. In the best-suited areas, this potential may rise to around 19 gigatonnes.
Reducing greenhouse gases is crucial for tackling climate change. This finding aligns with Canada’s ambition to be carbon neutral by 2050, in line with commitments under the Paris Climate Agreement.
Dr. Kevin Dsouza, a postdoctoral researcher involved in the study, highlighted surprising elements: “We were taken aback by the significant carbon-removal potential, even after considering factors like land availability and fire frequency. Replanting on previously forested land proved far more effective than on areas that hadn’t been forests for a long time. This shows it’s often better to fill in gaps in the northern forest than to convert open spaces.”
While large-scale tree planting has been proposed as a climate solution in Canada, this study offers the first detailed insights into how much carbon could be stored, while factoring in fire risks and tree growth conditions.
Dsouza emphasized that tree planting isn’t just about quantity. “The experience with Canada’s 2 Billion Trees program showed that it’s essential to choose the right locations and species, along with careful management, to truly make an impact.”
Looking ahead, future research will explore the influence of tree planting on permafrost and how snow cover reflects sunlight. Any proposed interventions must balance biodiversity, Indigenous rights, and local land use.
In recent years, social media trends have shown growing awareness and support for tree planting initiatives. Users share photos and stories, driving a grassroots movement that highlights the emotional connection many have with nature and the desire for action against climate change.
With around 1.5 million hectares previously logged in Canada, thoughtful reforestation efforts could restore vital ecosystems and offer new economic opportunities for local communities.
For further insights on tree planting’s environmental impact, check out the Government of Canada’s Climate Action Strategy.

